/**
* Returns the hashcode for the specified object.
*
* @param object IObject $obj The object to be hashed.
* @return integer The hash code.
*/
protected function f(IObject $obj)
{
return $obj->getHashCode();
}
/**
* Visits the given object.
*
* @param object IObject $w An object.
*/
public function visit(IObject $v)
{
$min = $this->latestTime[$this->latestTime->getLength() - 1];
foreach ($v->getEmanatingEdges() as $edge) {
$w = $edge->getV1();
$wt = $edge->getWeight();
$min = min($min, $this->latestTime[$w->getNumber()] - unbox($wt));
}
$this->latestTime[$v->getNumber()] = $min;
}